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-rw-r--r--src/js/tinyvm.ts5
-rwxr-xr-xtests/test.sh1
2 files changed, 5 insertions, 1 deletions
diff --git a/src/js/tinyvm.ts b/src/js/tinyvm.ts
index 51b390b..5ee29c7 100644
--- a/src/js/tinyvm.ts
+++ b/src/js/tinyvm.ts
@@ -179,6 +179,7 @@ export class TinyVM {
should resume it after its event loop has run, whether or not input came. */
public polling: boolean = false;
private outputBuffer: number[] = [];
+ private exitCode: number | null = null;
private onOutput?: (byte: number) => void;
private onMessage?: (msg: string) => void;
@@ -439,7 +440,8 @@ export class TinyVM {
return -1n;
case 6: // time
return BigInt(Math.floor(Date.now() / 1000));
- case 7: // exit
+ case 7: // exit: the run stops here with this status, as the native core's exit() does
+ this.exitCode = Number(BigInt.asIntN(32, a)) & 255;
return 0n;
case 8: // rand
return BigInt(Math.floor(Math.random() * 0x7FFFFFFF));
@@ -781,6 +783,7 @@ export class TinyVM {
mem = this.mem; bytes = this.bytes; view = this.view; mw = this.mw; // a grow may have moved them
mem[Number(a)] = result;
s = this.rs; r = this.rr;
+ if (this.exitCode !== null) { const code = this.exitCode; this.exitCode = null; return code; }
break;
} else if (Number(a) >= 0 && Number(a) < mw) {
mem[Number(a)] = b;
diff --git a/tests/test.sh b/tests/test.sh
index c31cfb7..45883d0 100755
--- a/tests/test.sh
+++ b/tests/test.sh
@@ -733,6 +733,7 @@ s_js() {
chk "$(node $T/jsvm/tinyvm.js examples/primes.zc | tail -1)" "widest gap: 72, after 31397" "js vm: primes"
chk "$(node $T/jsvm/tinyvm.js tests/programs/growone.zc)" "12 1" "js vm: a block past the initial heap grows the machine"
chk "$(node $T/jsvm/tinyvm.js tests/programs/trace.zc 2>&1 | md5sum)" "$(md5sum < tests/programs/trace.expected)" "js vm: backtraces read the return stack through gate op 56"
+ node $T/jsvm/tinyvm.js tests/programs/trace.zc >/dev/null 2>&1; chk "$?" "2" "js vm: a runtime fault stops the run with exit status 2 (syscall 7), as the native core does"
chk "$(node $T/jsvm/tinyvm.js tests/programs/replace_owner.zc)" "$(cat tests/programs/replace_owner.expected)" "js vm: replacement ownership and cleanup"
chk "$(node $T/jsvm/tinyvm.js tests/programs/embed.zc | tr '\n' '/')" "hello/world 11 42 5 255 8 -1 0 119 15 5 255 3 98 321 63/" "js vm: embed declarations read their files through node"
if sh src/tools/findcc.sh --wasm >/dev/null 2>&1 && command -v wasm-ld >/dev/null; then